diff options
author | Christian Grothoff <grothoff@gnunet.org> | 2022-04-01 16:39:07 +0200 |
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committer | Christian Grothoff <grothoff@gnunet.org> | 2022-04-01 16:39:07 +0200 |
commit | caf66486e70d896b1dd4eca3785fd42185a540cd (patch) | |
tree | bc4323b6fc7d1e256b485daaf7c20bdfa9037cfd /src/util | |
parent | 747ae5ef094731650911838a51e49db778b18ab6 (diff) |
work on purse creation logic
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/exchange_signatures.c | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/util/exchange_signatures.c b/src/util/exchange_signatures.c index 4bfa822f1..eeec0d613 100644 --- a/src/util/exchange_signatures.c +++ b/src/util/exchange_signatures.c @@ -1261,4 +1261,117 @@ TALER_exchange_online_reserve_closed_verify ( } +GNUNET_NETWORK_STRUCT_BEGIN + +/** + * Response by which the exchange affirms that it has + * received funds deposited into a purse. + */ +struct TALER_PurseCreateDepositConfirmationPS +{ + + /** + * Purpose is #TALER_SIGNATURE_EXCHANGE_CONFIRM_PURSE_CREATION + */ + struct GNUNET_CRYPTO_EccSignaturePurpose purpose; + + /** + * When did the exchange receive the deposits. + */ + struct GNUNET_TIME_TimestampNBO exchange_time; + + /** + * When will the purse expire? + */ + struct GNUNET_TIME_TimestampNBO purse_expiration; + + /** + * How much should the purse ultimately contain. + */ + struct TALER_AmountNBO amount_without_fee; + + /** + * How much was deposited so far. + */ + struct TALER_AmountNBO total_deposited; + + /** + * Public key of the purse. + */ + struct TALER_PurseContractPublicKeyP purse_pub; + + /** + * Public key of the merge capability. + */ + struct TALER_PurseMergePublicKeyP merge_pub; + + /** + * Hash of the contract of the purse. + */ + struct TALER_PrivateContractHashP h_contract_terms; + +}; + +GNUNET_NETWORK_STRUCT_END + + +enum TALER_ErrorCode +TALER_exchange_online_purse_created_sign ( + TALER_ExchangeSignCallback scb, + struct GNUNET_TIME_Timestamp exchange_time, + struct GNUNET_TIME_Timestamp purse_expiration, + const struct TALER_Amount *amount_without_fee, + const struct TALER_Amount *total_deposited, + const struct TALER_PurseContractPublicKeyP *purse_pub, + const struct TALER_PurseMergePublicKeyP *merge_pub, + const struct TALER_PrivateContractHashP *h_contract_terms, + struct TALER_ExchangePublicKeyP *pub, + struct TALER_ExchangeSignatureP *sig) +{ + struct TALER_PurseCreateDepositConfirmationPS dc = { + .purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_PURSE_CREATION), + .purpose.size = htonl (sizeof (dc)), + .h_contract_terms = *h_contract_terms, + .purse_pub = *purse_pub, + .merge_pub = *merge_pub, + .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration), + .exchange_time = GNUNET_TIME_timestamp_hton (exchange_time) + }; + + return scb (&dc.purpose, + pub, + sig); +} + + +enum GNUNET_GenericReturnValue +TALER_exchange_online_purse_created_verify ( + struct GNUNET_TIME_Timestamp exchange_time, + struct GNUNET_TIME_Timestamp purse_expiration, + const struct TALER_Amount *amount_without_fee, + const struct TALER_Amount *total_deposited, + const struct TALER_PurseContractPublicKeyP *purse_pub, + const struct TALER_PurseMergePublicKeyP *merge_pub, + const struct TALER_PrivateContractHashP *h_contract_terms, + const struct TALER_ExchangePublicKeyP *pub, + const struct TALER_ExchangeSignatureP *sig) +{ + struct TALER_PurseCreateDepositConfirmationPS dc = { + .purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_PURSE_CREATION), + .purpose.size = htonl (sizeof (dc)), + .h_contract_terms = *h_contract_terms, + .purse_pub = *purse_pub, + .merge_pub = *merge_pub, + .purse_expiration = GNUNET_TIME_timestamp_hton (purse_expiration), + .exchange_time = GNUNET_TIME_timestamp_hton (exchange_time) + }; + + return + GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_PURSE_CREATION, + &dc, + &sig->eddsa_signature, + &pub->eddsa_pub); +} + + /* end of exchange_signatures.c */ |